Tag: anaerobic digestion

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Anaerobic Digestion on the Farm Conference 2026

Research, Policy, Industry, and Innovation

9-11 June, 2026, State College, PA

Registration is closed – thank you to all who have signed up!

To review full program, visit AD on the Farm Conference 2026 Program

About the Conference:

Anaerobic digestion on the farm has experienced a surge of interest and activity, owing to a variety of factors such as technology developments, public support, and increased awareness of its potential for energy production, rural livelihoods, ecosystem services, nutrient management, and other …

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Renewable Natural Gas from Manure and Grasses: Business Opportunity Plan for “Sleeping Squirrel Farm”

Authors: Daniel Ciolkosz, Michael, Hile, Bill Lazarus, and Gary Musgrave, Penn State Extension

Overview:

This business opportunity plan describes the steps involved in establishing an on-farm anaerobic digester that produces biogas from a combination of manure and perennial grass (in this case, switchgrass), and sells it as Renewable Natural Gas (RNG) for injection into an adjacent pipeline. The overall configuration of the facility is described, sizes and capacities of major equipment are laid out, and estimated costs along with a …

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Anaerobic Digestion

Bioenergy Curriculum graphic

This Anaerobic Digestion module is part of the Biomass Energy Training Curriculum, 13 modules developed through a Southern SARE grant and collaboration between Tennessee State University, the University of Tennessee, eXtension.org, and USDA-Rural Development. While it is written as a training guide for TN producers, much of the information is applicable throughout the Southeastern US region.

This curriculum is designed to increase the knowledge base of extension agents and local officials on biomass energy; so that they may, in

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Biomass Energy Training Curriculum – TN

Bioenergy Curriculum graphic
 
This curriculum  provides training on biomass energy to extension agents and local officials so that they may deliver this information to their stakeholders. While it is written as a training guide for TN, much of the information is applicable throughout the Southeastern US region.
 

This curriculum was developed through a Southern SARE grant and collaboration between Tennessee State University, the University of Tennessee, eXtension.org, and USDA-Rural Development. 

 

Link to the full TN Biomass Energy Training Curriculum (a 254 page downloadable

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Anaerobic Digestion and Biogas

 

Farm Energy IQ logo

This Biogas module provides reasonable expectations for investing in on-farm bio-digesters to convert animal waste to process heat and/or electricity. Learn how to calculate the number of animals needed to build a cost effective system.

Link to all of the Northeast Farm Energy IQ Curriculum, developed by Extension specialists from Penn State, Rutgers and University of Vermont.

This is part of the On Farm Energy Production Curriculum Series: 

Bioenergy Feedstock Production | Biodiesel and SVO | Biogas | Wood …

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Transformation and Agronomic Use of Nutrients From Digester Effluent

Table of Contents

Anaerobic Digestion Nutrient Transformations

Anaerobic digestion (AD) is the process in which organic compounds are broken down by naturally occurring bacteria, including methanogenic microorganisms under oxygen free conditions, transforming organic matter into biogas (methane (CH4), carbon dioxide (CO2), water vapor, ammonia, and hydrogen sulfide) (Dugba and Zhang, 1999; AgSTAR, 2010b). The end products of this process include biogas, a renewable …

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Cayuga County Manure Digester Virtual Tour

livestock and poultry environmental learning center logo with cow, pig, and chicken sillhouettes over a map of the U.S. with three circling arrows

Anaerobic digestion is a manure treatment system that produces biogas. There are many benefits of digestion such as reductions in: odor, pathogens, and greenhouse gases (climate change). Producing biogas from manure yields useful by-products.  The economics of digestion are dependent on state energy policies and co-digestion of off-farm wastes to generate revenue.

Cayuga County Regional Digester (New York)

This virtual tour highlights the Cayuga County Soil & Water Conservation District regional digester. This facility receives …

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Farm Energy Anaerobic Digestion and Biogas


Contents:barn

Articles and Fact Sheets

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Processing Biomass Into Biogas


Tables Of Contents

Anaerobic Digestion of Animal Manures: Understanding the Basic Processes

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Anaerobic Digesters and Biogas Safety

When manure is anaerobically digested, the biogas produced is primarily composed of methane and carbon dioxide, with lesser amounts of hydrogen sulfide, ammonia, and other gases. Each of these gases has safety issues. Overall, biogas risks include explosion, asphyxiation, disease, and hydrogen sulfide poisoning.

Image: US Municipal Supply Company.

Extreme caution is necessary when working with biogas. Adequate ventilation, appropriate precautions, good work practices, engineering controls, and adequate personal protective equipment will minimize the dangers associated with biogas. Wherever possible, …

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